cannot slice shap values like SHAP package #35
Description
Hi, I am using fasttreeshap v0.1.6 package to calculate the shap values of my random forest model. It really accelerate the shap value calculation substantially. However, when I tried to produce the scatter or dependence plots, I cannot extract a single column of the shap values (e.g., shap_values[:, 0] or shap_values[:, feature1]). I got an IndexError: index 1 is out of bounds for axis 1 with size 1.